Without color; lacking characteristics which give variety. blank (Adjective). Free from writing, printing, or marks; having an empty space to be filled in; as, blank paper; a blank check; a blank ballot. blank (Adjective). Without expression.
Yes they do damage hair. Every time I have tried one ,I wound up looking like a Q-tip or my head looked like cotton. A perm will damage even more and look worse if you have been coloring your hair. There's chance of it looking okay if you don't color your hair.
The first couple of days after a perm are a particularly delicate time for the hair because the chemical solutions used to reshape the hair shafts are still doing their work. Some simple care techniques will give your perm a more lasting hold and help keep your hair healthier for longer.